| (P2DF) The reproductive feminine cell is liberated: | (P2DM) The masculine reproductive cell is liberated: |
| 1. Every 7 days | 1. Every 7 days |
| 2. Every 14 days | 2. Every 14 days |
| 3. Every 28 days | 3. Every 28 days |
| 4. In a permanent way | 4. In a permanent way |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.